Lithospermum. Lithospermum officinale. Common Gromwell.

Botanical name: 

Lithospermum. Lithospermum officinale L. Common Gromwell. Milium Solis.—A European perennial, also found along roadsides and pastures of Canada and the northern United States, of the Fam. Boraginaceae, the seeds of which are ovate, of a grayish-white or pearl color, shining, rather larger than millet seeds, and of a stony hardness, from which the generic name of the plant originated. They were formerly used as stimulant diuretics, but are nearly inert.

The Dispensatory of the United States of America, 1918, was edited by Joseph P. Remington, Horatio C. Wood and others.